Wheel spoke unit



FIG. 1 is a perspective view of a wheel spoke unit, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof, it being understood that opposite side is mirror image thereof;

FIG. 4 is a bottom view thereof; and,

FIG. 5 is a top view thereof.

The broken line showing of environment is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a wheel spoke unit, as shown and described. 